1825
John M. Snowden (Democratic-Republican, Jacksonian) became Pittsburgh's third mayor
1826
Sharpsburg became a municipality
1828
Wexford became a municipality
1828
Magnus Miller Murray (Jacksonian, Democrat) became Pittsburgh's 4th mayor
1829
Tarentum became a municipality
The town of Tarentum was founded by Judge Henry Marie Brackenridge in 1829 when the Pennsylvania Canal was completed between Philadelphia and Pittsburgh. Brackenridge, who owned land between Tarentum and Natrona, surveyed an area between Ross and Lock Streets.
1829
McKees Rocks became a municipality